Allow list action for users with limited indexing

Problem description

List action assumes that user has access to all cluster permision and can perform reqest to {{ elasticsearch_url }}/_stat/indexing endpoint. However this endpoint can be reached by user which has cluster permision indices_monitor. But user who has only acces to some part of indices could not perform that request and action fails.

Proposal

Use Elasticsearch cat API and return list of indices that user can see.